How to save corresponding elements in a matrix?

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Hannah Schultejans
Hannah Schultejans 2015-7-24
编辑： Azzi Abdelmalek 2015-7-24
If I have this matrix:
A=[1, 2;
4, 5;
6, 6]
How would I pull elements from the first column that are greater than 3 but save the corresponding elements in the second column to a new matrix? For reference, these columns have been abbreviated. The second column is time data, and the first is motion. I want to save the times when the motion data exceeded a set threshold.

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Azzi Abdelmalek
Azzi Abdelmalek 2015-7-24
编辑：Azzi Abdelmalek 2015-7-24
B=A(A(:,1)>3,:)
If you want to save just the second column
B=A(A(:,1)>3,2)
You need to read some basics http://www.mathworks.com/help/matlab/getting-started-with-matlab.html

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